247124442 has 16 divisors (see below), whose sum is σ = 496036512. Its totient is φ = 82076880.

The previous prime is 247124441. The next prime is 247124447. The reversal of 247124442 is 244421742.

It is a super-2 number, since 2×247124442² = 122140979667622728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (247124441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72684 + ... + 76007.

It is an arithmetic number, because the mean of its divisors is an integer number (31002282).

Almost surely, 2^247124442 is an apocalyptic number.

247124442 is an abundant number, since it is smaller than the sum of its proper divisors (248912070).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

247124442 is a wasteful number, since it uses less digits than its factorization.

247124442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148973.

The product of its digits is 14336, while the sum is 30.

The square root of 247124442 is about 15720.1921743979. The cubic root of 247124442 is about 627.5358874308.

The spelling of 247124442 in words is "two hundred forty-seven million, one hundred twenty-four thousand, four hundred forty-two".